CVE-2025-14813 is a cryptographic vulnerability in the BC-JAVA bcprov library's GOSTCTR implementation used by Red Hat products including OpenShift Dev Spaces. The GOSTCTR cipher reuses keystream after encrypting more than 255 blocks, violating fundamental confidentiality guarantees. An attacker who captures ciphertext encrypted beyond this limit can perform cryptanalysis to recover plaintext data. The vulnerability impacts confidentiality but not integrity or availability. Red Hat's advisory highlights the need to limit encryption payload size or transition to a secure authenticated encryption mode. No explicit patch or fix is currently provided; mitigation is procedural.

The vulnerability allows attackers to break the confidentiality of data encrypted with the GOSTCTR implementation after more than 255 blocks are processed under the same key and IV. This can lead to full recovery of plaintext from ciphertext, compromising sensitive communications or stored data. There is no impact on data integrity or availability. No known exploits are reported in the wild. The severity is high due to the potential for complete data exposure.

Currently, no official patch or fix is confirmed for this vulnerability. To mitigate the risk, users must strictly limit the amount of data encrypted under a single key and IV pair to a maximum of 255 blocks when using the GOSTCTR implementation. Alternatively, users should transition to a more secure, standardized, and authenticated encryption mode to avoid keystream reuse. Monitor Red Hat advisories for updates or patches addressing this issue.